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13111952 = 247117071
BaseRepresentation
bin110010000001…
…001010010000
3220200011012212
4302001022100
511324040302
61145011252
7216310160
oct62011220
926604185
1013111952
117446227
124483b28
132941169
141a545a0
151240052
hexc81290

13111952 has 20 divisors (see below), whose sum is σ = 29033856. Its totient is φ = 5619360.

The previous prime is 13111951. The next prime is 13111961. The reversal of 13111952 is 25911131.

It is not an unprimeable number, because it can be changed into a prime (13111951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58424 + ... + 58647.

Almost surely, 213111952 is an apocalyptic number.

It is an amenable number.

13111952 is an abundant number, since it is smaller than the sum of its proper divisors (15921904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13111952 is a wasteful number, since it uses less digits than its factorization.

13111952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117086 (or 117080 counting only the distinct ones).

The product of its digits is 270, while the sum is 23.

The square root of 13111952 is about 3621.0429436835. The cubic root of 13111952 is about 235.8065061514.

The spelling of 13111952 in words is "thirteen million, one hundred eleven thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 117071 234142 468284 819497 936568 1638994 1873136 3277988 6555976 13111952